fix: sysinfo 0.30 API compatibility and clippy errors

- Fixed sysinfo API: refresh_cpu_all() -> refresh_cpu()
- Fixed sysinfo API: global_cpu_usage() -> global_cpu_info().cpu_usage()
- Added proper documentation backticks for code terms
- Added #[must_use] attributes to getter methods
- Added # Errors section to bind_endpoint()
- Fixed duplicate match arms in init_logging()
- Suppressed clippy::too_many_lines for display function

Resolves integration team build issues with sysinfo 0.30.13

Author: eastgate

code/crates/nestgate-api/src/bin/nestgate-api-server.rs

@@ -47,8 +47,8 @@ use tracing::{debug, info};
 
 /// Server configuration with RPC capabilities
 ///
-/// ✅ MODERNIZED (Week 2): Now uses EnvironmentConfig for all settings
-/// Eliminates hardcoded defaults and manual env::var parsing
+/// ✅ MODERNIZED (Week 2): Now uses `EnvironmentConfig` for all settings
+/// Eliminates hardcoded defaults and manual `env::var` parsing
 #[derive(Debug, Clone)]
 /// Configuration for Server
 pub struct ServerConfig {
@@ -67,29 +67,35 @@ pub struct ServerConfig {
 }
 
 impl ServerConfig {
-    /// Get bind endpoint as SocketAddr
+    /// Get bind endpoint as `SocketAddr`
+    ///
+    /// # Errors
+    /// Returns an error if the bind address cannot be parsed
     pub fn bind_endpoint(&self) -> Result<SocketAddr, std::net::AddrParseError> {
         self.env_config.bind_address()
     }
 
     /// Get API port
+    #[must_use]
     pub fn api_port(&self) -> u16 {
         self.env_config.network.port.get()
     }
 
     /// Get bind address string
+    #[must_use]
     pub fn bind_address(&self) -> &str {
         &self.env_config.network.host
     }
 
     /// Get log level
+    #[must_use]
     pub fn log_level(&self) -> &str {
         &self.env_config.monitoring.log_level
     }
 }
 
 impl Default for ServerConfig {
-    /// Returns the default instance using EnvironmentConfig
+    /// Returns the default instance using `EnvironmentConfig`
     fn default() -> Self {
         Self {
             env_config: EnvironmentConfig::default(),
@@ -170,8 +176,8 @@ async fn main() -> Result<()> {
 
 /// Load server configuration with RPC settings
 ///
-/// ✅ MODERNIZED (Week 2): Uses EnvironmentConfig for all settings
-/// Eliminates manual env::var parsing and unwrap() calls
+/// ✅ MODERNIZED (Week 2): Uses `EnvironmentConfig` for all settings
+/// Eliminates manual `env::var` parsing and `unwrap()` calls
 fn load_config() -> Result<ServerConfig> {
     // Load base configuration from environment
     let env_config =
@@ -222,10 +228,9 @@ fn init_logging(log_level: &str) {
     let level = match log_level.to_lowercase().as_str() {
         "trace" => tracing::Level::TRACE,
         "debug" => tracing::Level::DEBUG,
-        "info" => tracing::Level::INFO,
         "warn" => tracing::Level::WARN,
         "error" => tracing::Level::ERROR,
-        _ => tracing::Level::INFO,
+        _ => tracing::Level::INFO, // "info" or unknown defaults to INFO
     };
     // Initialize basic tracing (tracing_subscriber not available)
     println!("Initializing tracing with level: {level:?}");
@@ -259,6 +264,7 @@ fn print_enhanced_banner() {
     );
 }
 /// Print enhanced API endpoints with RPC capabilities
+#[allow(clippy::too_many_lines)]
 fn print_enhanced_api_endpoints(config: &ServerConfig) {
     println!("\n📋 Complete API Endpoints with Real-time Bidirectional RPC:");
     println!("┌─────────────────────────────────────────────────────────────────────┐");

code/crates/nestgate-api/src/handlers/storage_error_path_tests.rs

@@ -384,3 +384,4 @@ fn test_storage_structs_are_debug() {
 
 
 
+

code/crates/nestgate-api/src/rest/handlers/monitoring.rs

@@ -279,8 +279,8 @@ pub async fn get_alerts(
     // Simulate system resource alerts
     // ✅ REAL METRICS: Get actual current CPU usage
     let mut sys = sysinfo::System::new();
-    sys.refresh_cpu_all();
-    let current_cpu = f64::from(sys.global_cpu_usage());
+    sys.refresh_cpu();
+    let current_cpu = f64::from(sys.global_cpu_info().cpu_usage());
     if current_cpu > 80.0 {
         alerts.push(Alert {
             id: "alert_002".to_string(),

scripts/clippy_pedantic_analysis.sh

@@ -42,3 +42,4 @@ echo "🎯 Estimated time: 1-2 hours for all fixes"
 
 
 
+